Bubba invested $760. If he earned 20% on his investment, a. How much interest did her earn? (simple interest formula) b. How much money does he have now? PLZ ANSWER AS FAST AS U CAN ​

Researchers were interested in whether relaxation training decreases the number of headaches a person experiences. they randomly assigned 20 participants to a control group or a relaxation training group and noted the change in number of headaches each group reported from the week before training to the week after training. which statistical analysis should be performed to answer the researchers' question?

Simplify. (-2)^-3 a. -8 b. -1/8 c. 1/8 d. 8

Hector and alex traded video games. alex gave hector one fourth of his video games in exchange for 6 video games. then he sold 3 video games and gave 2 video games to his brother. alex ended up with 16 video games. how many video games did alex have when he started?